Re: [Linuxptp-users] (no subject)

[Richard C. <ric...@gm...>]

On Tue, Jul 12, 2016 at 11:35:18PM +0200, Richard Cochran wrote:
> - Another idea is to run Layer-2 and isolate using VLANs.

Also:

- You can try running UDP over two different VLAN interfaces.

- VLAN will only work if your HW correctly identifies PTP frames with
  a VLAN header.

- Regarding the HW: Some MAC HW can only time stamp one transmit frame
  at a time, like the Intel 82574 (driver e1000e) for example.  If you
  have such HW, then running two ptp4l instances will *not* work.

HTH,
Richard